Save-all



Jan. 8 1924- G. W. BROWN SAVE ALL Filed April 6, 1921 I IV VE N 70/? 650/965 14/ fi/eonw %lz f A TTORNE V8 WITNESSES Patented Jan. 8, 1924,

UNITED- mm PATENT OFFICE. I

GEORGE WILBUR BROWN, OF MILLWOOD, WASHINGTON, ASSIGNOR TO INLAND EM- 7 FIRE PAPER 00., OF MILLWOOD, WASHINGTON, A. CORPORATION OF WASHINGTON.

SAVE-ALL.

Application m April 6, 1921. serial No. 455,927.

To all'whom it may concem:

Be it known that I, Gmnon W. BROWN, a citizen of the United States, and a resident of Millwood, in the county of Spokane and State of Washington, have invented a provide a new and improved save-all ar-- ranged to separate effectively the pulp fibers from the waste water discharged from apparatus handling'of the raw stock or from 15 the paper-making machine.

Another object is to permit of operatlng the save-all without requiring any power exce t that for running a conveyor to carry off t e recovered stock.

Another object is to permit of conveniently adjusting the save-all for use with different stock.

With these and other objects in view, the invention consists of certain novel features of construction as hereinafter shown anddescribed and then specifically pointed out in the claims.

- A practical embodiment of the invention is represented in the accompanying drawings forming a part of this specificatlon, 1n

vwhich similar characters of reference indicate corresponding parts in both views.

Figure 1 is a perspective view of the 1mproved save-all; and

Figure 2 is a sectional side elevation of the same.

The base of the separating machine is in the form of-a basin for receiving the water after it issepa'rated from the stock, and this basin l0 is provided with an outlet pipe 11 for carrying off the water. At the rearaof the; basin 10 are erected posts 12 which support a trough or a flume 13 closed at one end and connected at its other end with the apparatus handling the raw stock or with the paper-making machine to allow the waste water containing the pulp fibers to flow through the trough or flume 13 to the discharge end thereof. The front of the trough or flume 13 is Ended with a plurality of gates 14 for harging the waste wateronto the u r end of a screen 15 inclined..downwar y and forwardly. The upper and of the screen 15 is hinged or pivoted at 16 to the bottom of the trough 13 at the front edge thereof, and the lower end of the said screen 15 is provided with adusting means 17, such as a turnbuckle, connecting the screen with the basin 10 to allow of varying the incline or angle of, the screen 15 according to the nature of the pulp under treatment at the time.

The upper portion 20 of the screen 15 is preferably of a finer mesh than the lowerportion 21; for instance, the upper portion 20 is preferably of 100-mesh while the lower portion 21 is of 60 to -mesh. The fine upper mesh portion 20 serves to start the gathering of the stock on the top screen, and once the stock has gathered, the mass tends to act as a filter for the white water following behind so that all except the most minute fi rous particles are saved and of the consolidated with the mass of stock,"which by its own weight tends to roll down the inclined screen to the lower end thereof. A jet or shower pipe 22 is preferably mounted to turn in bearings 23 attached to the posts 12 immediately in the rear of the upper portion 20 ofthe screen 15 to deliver jets of water against the said upper screen portion tokeep the meshes of the screen open, free of slime or other extraneous matter. A rocker arm 24 is preferably attached'to the pipe 22 and connected with other machinery for rocking thepipe 22 to direct the jets to a large area of the screen 15.-

The lower end of the inclined screen 15 discharges into the conveyor box 25 of a r conveyor of any approved construction but one that is preferably provided with wooden flights 26 attached 'to a chain 27 passing around wheels 28 mounted 'in the box 25. One of the wheels is'driven by means not illustrated in the drawings. The wooden flights 26 on the lower run of the chain 27 are 1n close proximity to the bottom of the box 25 to readily move the separated stock forward in the'box 25 to a suitable place of discharge. I I

From the foregoing it will be seen that by the arrangement described the stock and waterare effectively separated and the recovered stock is returned to the raw stock end of the mill for manufacture into paper The save-all shown and described 18 very sim 1e and durable in construction and not liab to get out of order easily, and the saveall requires no power for its operation except running the conveyor to carry off the recovered stock.

I for the waste water,an 2.

separated stock to travel down the screen, and an endless conveyor into Whlh discharges the, lower end of the said screen for carrying off the stock separated from the waste water.

2. A save-all comprising a delivery trough for the waste water, an adjustable screen in front of the delivery trough and inclined downwardly and forwardly therefrom to allow the water to separate from the stock and pass through the screen and to allow the separated stock to' travel down the screen, a conveyor into which discharges the lower end of the said screen for carrying off the stock separated from the waste water, and a basin from which the trough is supported and arranged under the said screen for collecting the water passing through the screen.

3, A save-all comprising a delivery means for the waste water, a screen in front of the delivery means and inclined downwardly and forwardly therefrom to allow the water to separate from the stock and pass through the screen and to allow the separated stock to travel down the screen, a conveyor into which discharges the lower end of the said screen for carrying off the stocliseparated from the waste water, and a jet pipe connected with a water supply and extending under the upper portion of the screen to deliver jets of water against the under. side of the screen.

4. A save-all comprising a delive means for the waste water, a screen in out of the delivery means and inclined downwardly and forwardly therefrom to allow the water to separate from the stock and pass through the screen and to allow the separated stock to travel down the screen, the u per portion of the said screen being of a er mesh.

than the lower portion thereof, and a conveyor into which discharges the lower end of thesaid screen for carrying off the stock .bein of finer mesh than the lower screen portion, the upper end of the screen bein pivoted, adjusting means on the lower end of the screen to adjust the screen to a desired angle, and means for receiving and carryingoif the pulp separated from the water and traveling down the screen by its own avity.

6. g save-all comprising a delivery trough closed at one end and provided at the front with gates, an inclined screen having its upper end at the said gates to receive the waste water, the upper portion of the screen being screen ortlon, the upper end of the screen being pivoted, adjustin means on the lower end of thescreen to adjust the screen to a desired angle, means for receiving and carrying ofi the pulp separated from the water and traveling down the screen by its own gravity, and a water jet pipe connected with a water supply and extending under the upper portion of the screen to deliver jets of water against the said screen.

7. A save-all, comprising, a delivery trou h closed at one end and provided at the ont with gates, an inclined screen having its upper end at the said gates to receive the waste water, the upper portion of the screen being of finer mesh than the lower screen portion, the u per end of the screen being ivoted, adjusting means on the lower end of the screen to adjust the screen to a desired angle, means for receiving and carrying ofi the pul separated from the water and traveling own the screen by its own gravity, a water jet pipe connected with a water supply and extending under the upper portion of the screen to deliver jets ofwater ainst the said screen, and a catchbasin un er the screen for collecting the water passing through the screen.

of finer mesh than the lower-- osonon WILBUR snows. 

